Rule list parameters for SPACSECR used with Allocation


Related topic

SPACSECR—reduce secondary allocation to largest extent (used with Allocation)

The following table lists the parameters that you can specify in a SET statement (in member SMRLSTxx).

SPACSECR rule list parameters

Parameter

Purpose

Syntax

Default

EVENTID

This parameter specifies the identifier that is assigned to a user event in SMEVNTxx.

This parameter causes an event to be generated from this function.

Important

If EVENTID is used on an FLST SET statement with MODE=INACT, the event will still be issued. The EVENTID parameter will generate events only if the Automation component is licensed and active.

EVENTID=xxxxx

xxxxx is the 5-character string that is specified on the EVNTID parameter in SMEVNTxx.

None

NOCHECK

This parameter specifies the checks bypassed in space recovery validation.

NOCHECK=CONTIG

None

SPACSECR

This parameter specifies the lower limit and the decrement of space reduction, a percentage of the original secondary allocation value.

  • The first value specifies a lower limit percentage, below which SPACSECR will not go.
  • The second value is the percentage by which the secondary allocation will be decremented.

Important

If SPACSECR=(50,10), the function decrements the original secondary value by 10% on each attempt to find a secondary extent but will not decrement the secondary size more than 50% of the original value.

The second value (decrement percentage) is used only for data sets with multiple stripes; for all other data sets, the new allocation value is set to the size of the largest contiguous extent on the volume.

For the second value, a percentage is used for reduction instead of best fit because the new secondary value must fit on all volumes on which the multistripe data set exists.

SPACSECR=(nnn,nnn)

The first nnn is the floor limit. The second nnn is a percentage between 0 and 100 by which reduction can take place until either it fits or the floor limit is reached. (A specification of 100 will not reduce the secondary size at all.)

SPACSECR=(0,10)



 

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